| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a safety device for a platform door adapted to improving the durability more than before. <P>SOLUTION: This safety device 30 for the platform door includes a time-of-flight system three-dimensional sensor 40 arranged in the platform door 20 and detecting an object existing in the vicinity of the platform door 20, and a light attenuating part 50 for attenuating the reflected light to the incident light, and is characterized in that the three-dimensional sensor 40 includes a plurality of LEDs for emitting the infrared light to a predetermined range, and a plurality of light receiving elements for receiving the infrared light emitted from the plurality of LEDs and reflected by the object, the plurality of light receiving elements receive the light from respective charge ranges in the predetermined range, the plurality of LEDs simultaneously emit the light to the respective charge ranges of the plurality of light receiving elements, and the light attenuating part 50 is arranged in an incident position of at least a part of the infrared light emitted from the plurality of LEDs. <P>COPYRIGHT: (C)2013,JPO&INPIT |
